List of top Chemistry Questions asked in TS POLYCET

IUPAC name of CH\(_3\)CHO is:
Which of the following methods is used for the concentration of ore?
What is the nature of a solution whose pH value is 'zero'?
The law of octaves was proposed by:
The purification method used for blister copper is:
Volume occupied by 10 g of hydrogen at STP in litres is
Ionic bond is formed due to transfer of electrons from
The number of sigma and \(\pi\)-bonds in ethyne molecule:
Which one of the following is a ketone?
Bond angle in BeCl\(_2\) molecule is
The process of dissolving acid or base in water is
Number of elements present in the sixth period of the modern periodic table
The final compound formed when methane reacts with chlorine in the presence of sunlight is
Polar covalent bond present in
Ionization energy along a period from left to right generally
Number of bond pairs and lone pairs in the valence shell of nitrogen in NH\(_3\)
Oxygen gains ____________________ electrons during the chemical changes.
Law of octaves was proposed by
Which one of the following atoms is smaller in size?
Element with atomic number 17 belongs to
The hydrocarbons containing only single bonds between carbon atoms are called
If the hydrogen atom of -COOH gets replaced by 'R' (alkyl group) _______________ are obtained.
Which of the following is an unsaturated compound?
Maximum no. of electrons in a subshell is equal to
The metal that occurs in the free form (native) is